Method of ornamenting sheet rubber



March 25, 1930. ALA. GLIDDEN AL METHOD OF ORNAMENTING SHEET RUBBERvFiled Oct. 26, 1928 21/ 2. flax/7L,

Patented Mar. 25, 1930 UNITED STATES PATENT OFFICE ALFRED A. GLIDDEN ANDFRANK D. BEAN, OF WATERTOWN, MASSACHUSETTS, ASSIGN-- ORS, BY MESNEASSIGNMENTS, TO HOOD RUBBER COMPANY, INC, OLE WATERTOWN, MASSACHUSETTS,A CORPORATION OF DELAWARE METHOD OF ORNAMENTING SHEET RUBBER Applicationfiled October 26, 1928. Serial No. 315,306.

This invention relates to an improved method of ornamenting sheet rubberand to the article produced by said method.

The effect produced by the method hereinafter described is to give thesheet rubber the appearance of a fabric.

The invention consists in the improved method and article of manufacturehereinafter described in the specification and'particularly pointed outin the claims.

Referring to the drawings:

Figure 1 is a plan view of a piece of sheet rubber embodying ourinvention.

Fig. 2 is a section taken on line 2-2, Fig. 1;.

Like numerals refer to like'parts in the views of the drawings.

In the drawings, 5 is a sheet of rubber. 6. are projections thereon, and7 are different groups of lines 8. It will be seen that the lines .8 ofeach individual group 7 are parallel to each other, but that the lines.in each group are positioned at angles to the lines of thedifi'erentgroups adjacent thereto.

The article of manufacture of this invention is manufactured by passingsheet rubber between a pair of cold calender rolls, one of which ispebbled by covering the periphery of the roll with a large number ofindentations and when the sheet rubber is passed between the calenderrolls it is forced into the indentations and produces on one face of therubber a large number of small projections. After thus embossing therubber der is dusted off of the sheet, and the sheet isthen printed onthe pebbled side with any design desired, by means of a printing ress, V

'nters ink gives satisfactory resu ts. The result,

either a platen press or a rota press.

as indicated in the drawing gives the sheet rubber the appearance of afabric. .Any desired color 0 ink-may be used for the rintin and anydesired design may be emp oyed.

o obtain variety in the appearance of the article manufactured by thismethod, the

ber which consists in sheet of rubber may be of a different color fromthe ink of the design printed thereon.-

It will be noted that while the lines of indentations 1n the calender,and therefore the pro ections 6 on the sheet of rubber, are arrangedparallel to each other, yet the lines printed on the pebbled surface ofthe rubber give the appearance of the projections being arranged ingroups,'the projections in one projections in other groups adjacentthereto.

We clann 1. The method ofornamenting sheet rubber which consists inpassing sheet rubber between a pair of calender rolls, one of which ispebbled, then applying powder to the pebbled surface of the sheet, thenremoving the surplus powder, and subsequently printing a designcomprising a plurality of groups of parallel lines, the-lines of eachgroup being positioned at different angles to lines of the other groups.

2. As an article of'manufacture, sheet rubberhaving on one face thereofa plurality of projections and said face having a design printed in ink.thereon and consisting of a plurality of groups of lines, the lines ofeach group being parallel to each other and positioned at an angle tothe lines of other groups.

3. The method of ornamenting sheet rubassing sheet rubber between a pairof calen er rolls, one of which is pebbled, and subsequently printing adesign on the pebbled surface of said sheet, comprising a plurality ofgroups of parallel lines, the lines of each group being positioned atdifferent angles to lines of the other groups.

In testimony whereof we have hereunto set our hands.

, ALFRED A. GLIDDEN.

. FRANK D, BEAN.

